Name	vcc-gnd.com STM32F103VCT6 mini
Part	Unknown
Brand	vcc-gnd.com
Origin	China

Part	STM32F103VCT6
Manufacturer	ST-Microelectronics
Core	Arm Cortex-M3
Max. Clock Speed	72MHz
Package	LQFP 100 pins

FLASH	256KiB
SRAM	48KiB

HSI	8MHz
LSI	40kHz
HSE	8MHz
LSE	32.768kHz

Sources	Any +3.3V pin (+3.3V) Any +5V pin (+5V) USB connector (+5V)
VDDA pin	No
VSSA pin	No
VREF- pin	No
VREF+ pin	No
Backup battery	Pin

Manufacturer	Shanghai TX Electronics Sci-Tech Co., Ltd
Part	TX6211B (DE=A1D)
Package	SOT23-5 5 pins
Input	+3.6V to +5.5V
Output	+3.3V @ 300mA
Datasheet	TX6211B.pdf

Color	Blue
Size (w x l)	39.37mm x 49.53mm
Mounting	None

• Warning: The +5V pins on this board are directly connected to the +5V pin of the USB connector. There is no protection in place. Do not power this board through USB and an external power supply at the same time.

• Perspective view
• Top view
• Bottom view
• Original schematic
• Original dimensions drawing

Name	RESET
Reference	-
Type	Button
Connected to	NRST
Mode	Active low

Name	BOOT0
Reference	-
Type	2-way jumper
Connected to	BOOT0
Mode	N.A.

Name	BOOT1
Reference	-
Type	2-way jumper
Connected to	PB2
Mode	N.A.

Name	PWR
Reference	-
Type	LED
Connected to	+3.3V rail
Mode	N.A.

Name	PB9
Reference	-
Type	LED
Connected to	PB9
Mode	Sink

Name	Unknown
Reference	None
Type	Pin header (2.54mm, 18x2, male)

#	Name	Function	Connected to
1	C8	-	PC8
2	C6	-	PC6
3	C9	-	PC9
4	C7	-	PC7
5	A9	-	PA9
6	A8	-	PA8
7	A11	-	PA11
8	A10	-	PA10
9	A13	-	PA13
10	A12	-	PA12
11	A15	-	PA15
12	A14	-	PA14
13	C11	-	PC11
14	C10	-	PC10
15	C12	-	PC12
16	D0	-	PD0
17	D1	-	PD1
18	D2	-	PD2
19	D3	-	PD3
20	D4	-	PD4
21	D5	-	PD5
22	D6	-	PD6
23	D7	-	PD7
24	B3	-	PB3
25	B4	-	PB4
26	B5	-	PB5
27	B6	-	PB6
28	B7	-	PB7
29	B8	-	PB8
30	B9	-	PB9
31	GND	-	Ground plane
32	GND	-	Ground plane
33	3.3	-	+3.3V rail
34	3.3	-	+3.3V rail
35	GND	-	Ground plane
36	GND	-	Ground plane

Name	Unknown
Reference	None
Type	Pin header (2.54mm, 18x2, male)

#	Name	Function	Connected to
1	GND	-	Ground plane
2	GND	-	Ground plane
3	VB	-	VBAT
4	3.3	-	+3.3V rail
5	5V	-	+5V rail
6	5V	-	+5V rail
7	E0	-	PE0
8	E1	-	PE1
9	E2	-	PE2
10	E3	-	PE3
11	E4	-	PE4
12	E5	-	PE5
13	E6	-	PE6
14	C13	-	PC13
15	C14	-	PC14
16	C15	-	PC15
17	C0	-	PC0
18	C1	-	PC1
19	C2	-	PC2
20	C3	-	PC3
21	A0	-	PA0
22	A2	-	PA2
23	A1	-	PA1
24	A3	-	PA3
25	A4	-	PA4
26	A5	-	PA5
27	A6	-	PA6
28	A7	-	PA7
29	C4	-	PC4
30	C5	-	PC5
31	B0	-	PB0
32	B1	-	PB1
33	B2	-	PB2
34	E7	-	PE7
35	E8	-	PE8
36	E9	-	PE9

Name	Unknown
Reference	None
Type	Pin header (2.54mm, 10x2, male)

#	Name	Function	Connected to
1	E11	-	PE11
2	E10	-	PE10
3	E13	-	PE13
4	E12	-	PE12
5	E15	-	PE15
6	E14	-	PE14
7	B11	-	PB11
8	B10	-	PB10
9	B13	-	PB13
10	B12	-	PB12
11	B15	-	PB15
12	B14	-	PB14
13	D9	-	PD9
14	D8	-	PD8
15	D11	-	PD11
16	D10	-	PD10
17	D13	-	PD13
18	D12	-	PD12
19	D15	-	PD15
20	D14	-	PD14

Name	Unknown
Reference	None
Type	USB Micro

#	Name	Function	Connected to
1	-	VCC	+5V rail
2	-	D-	PA11 via 22Ω resistor (R4)
3	-	D+	PA12 via 22Ω resistor (R7), pulled up by 1.5kΩ resistor (R8)
4	-	ID	Ground plane
5	-	GND	Ground plane

Name	Unknown
Reference	P4
Type	Pin header (2.54mm, 4x1, female)

#	Name	Function	Connected to
1	GND	GND	Ground plane
2	SWCLK	SWCLK	PA14
3	SWDIO	SWDIO	PA13
4	3.3V	VCC	+3.3V rail

Name	Unknown
Reference	CN1
Type	microSD

#	Name	Function	Connected to
1	-	DAT2	PC10, pulled up via 10kΩ (R11)
2	-	CD/DAT3	PC11, pulled up via 10kΩ (R12)
3	-	CMD	PD2, pulled up via 10kΩ (R13)
4	-	VDD	+3.3V rail
5	-	CLK	PC12, pulled up via 10kΩ (R14)
6	-	VSS	Ground plane
7	-	DAT0	PC8, pulled up via 10kΩ (R15)
8	-	DAT1	PC9, pulled up via 10kΩ (R16)
9	-	CD	PF10 via 0Ω (R18), pulled up via 10kΩ (R17)
10	-	Body	Ground plane

Name	Unknown
Reference	U1
Manufacturer	Microchip Technology Inc.
Part	AT24C04
Marking	24C08N
Datasheet	AT24C01-02-04-08-16.pdf
Package	SOIC 8 pins
Description	1kB I2C EEPROM

#	Name	Function	Connected to
1	-	A0	Ground plane
2	-	A1	Ground plane
3	-	A2	Ground plane
4	-	GND	Ground plane
5	-	SDA	PB7, pulled up by 4.7kΩ (R3)
6	-	SCL	PB6, pulled up by 4.7kΩ (R2)
7	-	WP	Ground plane
8	-	VCC	+3.3V rail